Sylvester, TX Weather & Growing Conditions
Today
100°F
Sunny
Sunny. High near 100, with temperatures falling to around 97 in the afternoon. Heat index values as high as 101. South wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 5 to 10 mph S | 1% |
| Tonight | 77°F | Partly Cloudy | 5 to 10 mph SSW | 12% |
| Sunday | 99°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SSW | 41% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 51% |
| Monday | 94°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph ENE | 24% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph ENE | 52% |
| Tuesday | 88°F | Chance Showers And Thunderstorms | 5 to 10 mph ENE | 52% |
| Tuesday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph E | 31% |
| Wednesday | 89°F | Chance Showers And Thunderstorms | 5 mph E | 31% |
| Wednesday Night | 68°F | Mostly Cloudy | 5 mph ESE | 12% |
| Thursday | 91°F | Partly Sunny | 5 mph SE | 12% |
| Thursday Night | 69°F | Mostly Cloudy | 5 mph SE | 9% |
| Friday | 92°F | Partly Sunny | 5 mph SSE | 9% |
| Friday Night | 70°F | Mostly Cloudy | 5 mph ESE | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sylvester, TX
Last spring frost
Mar 17
First fall frost
Nov 15
Growing season
243 days
Hardiness zone
8a
Explore more for Sylvester, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Rotan, Tx (19.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.